113. Begonia paucilobata C. Y. Wu, Acta Phytotax. Sin. 33: 275. 1995.
少裂秋海棠 shao lie qiu hai tang
Herbs, ca. 30 cm tall. Rhizomes elongate, ca. 1.5 cm in diam. Leaves basal; stipules caducous, membranous; petiole 11-14.5 cm, subglabrous; blade broadly pentagonous, slightly asymmetric, 7-11 × 6.5-9 cm, abaxially subglabrous or hairy, adaxially sparsely hispidulous, venation palmate, base slightly cordate to cordate, margin slightly and remotely serrulate, distinctly divided to 1/2 of leaf length; lobes usually 5, apex acute. Inflorescences glabrous or hairy; peduncle ca. 13 cm; bracts caducous, ovate, 1.5-2 × ca. 1.5 cm, glabrous, apex acute. Staminate flowers: pedicel ca. 3.2 cm; tepals 4, pink, outer 2 broadly ovate, 3-4 × 3-4 cm, glabrous or abaxially hairy, inner 2 elliptic, ca. 2 × 1.3 cm; stamens numerous, fused at base; filaments ca. 2.5 mm; anthers obovoid-oblong, ca. 1 mm. Pistillate flowers: pedicel ca. 7 mm; tepals 5, ovate to orbicular, glabrous or abaxially hairy, 0.8-1.5 × 0.8-1.5 cm; ovary glabrous or hairy, 2-loculed; placentae axile, bilamellate; styles 2; stigmas 2-cleft, spiraled. Capsule nodding, ellipsoid, ca. 1.5 cm, unequally 3-winged; abaxial wing ligulate, 0.8-1.5 cm, apex rounded; lateral wings smaller. Fl. Jul-Aug, fr. Sep-Oct.
● Forest understories; 1700-1800 m. Yunnan.
This species is similar to Begonia laminariae but differs by the 5-lobed blade, which is divided to ca. 1/2 of the leaf length.